#include <stdio.h>
#include <unistd.h>

int main(){
  pid_t id = fork();

  if(id == 0){
    while(1){
      printf("子进程,pid:%d,ppid:%d\n",getpid(),getppid());
      sleep(1);
    }
  }
  else{
    int count = 10;
    while(1){
      printf("父进程,pid:%d,ppid:%d\n",getpid(),getppid());
      sleep(1);
      if(count-- <= 0)
        break;
    }
  }

  return 0;
}
